公开(公告)号：US06474172B1

公开(公告)日：2002-11-05

申请号：US09508605

申请日：2000-05-10

Applicant: Norbert Rolff ,  Rudolf Stocker

Inventor： Norbert Rolff ,  Rudolf Stocker

IPC: G01L2112

CPC classification number: G01L21/12

Abstract: Two resistance elements (3, 6) are used for eliminating the influence of wall temperature on the gas pressure in a vessel, determined by a Pirani manometer. The first resistance element (3) is present in a first branch of a Wheatstone bridge (1), and the voltage is tapped by means of a voltage divider (7). The second resistance element (6) is present with a series resistance (5) in the second branch and is adjusted to a lower temperature. The changes in the voltages tapped at the branches are essentially identical for identical temperature changes at the resistance elements (3, 6), so that the Wheatstone bridge (1) remains balanced. The adjustment is improved by a constant current source (11). Another embodiment uses only one resistance element, whose temperature is reduced periodically during the balancing of the Wheatstone bridge and, after thermal equilibrium has been established, is determined by determining its resistance by means of a low constant current and is used for the computational compensation of the effect of the wall temperature. In a further embodiment, transient effects are produced by periodically switching a resistance back and forth and the frequencies are measured, from which the gas pressure is then determined.

Abstract translation: 两个电阻元件（3,6）用于消除由Pirani压力计确定的壁温度对容器内气体压力的影响。 第一电阻元件（3）存在于惠斯通电桥（1）的第一支路中，并借助分压器（7）对电压进行抽头。 第二电阻元件（6）在第二支路中具有串联电阻（5），并被调节到更低的温度。 在电阻元件（3,6）处的相同温度变化下，分支点的电压变化基本相同，从而惠斯通电桥（1）保持平衡。 通过恒定电流源（11）改善了调整。 另一个实施例仅使用一个电阻元件，其在惠斯登电桥的平衡期间周期性地降低其温度，并且在建立热平衡之后，通过借助于低恒定电流确定其电阻来确定其并且用于计算补偿 壁温的影响。 在另一个实施例中，通过周期性地切换电阻产生瞬态效应，并且测量频率，然后确定气体压力。

公开(公告)号：US4995264A

公开(公告)日：1991-02-26

申请号：US450856

申请日：1989-12-14

Applicant: Rudolf Stocker ,  Walter Schaedler

Inventor： Rudolf Stocker ,  Walter Schaedler

IPC: G01L21/00 ,  G01L21/10 ,  G01L21/12 ,  G01L21/16 ,  G01L21/22

CPC classification number: G01L21/12 ,  G01L21/22

Abstract: A process for measuring pressure, preferably vacuum is described. The measuring signals from a heat conduction gauge and the measuring signals from a gas friction gauge are processed to a common measuring signal preferably by multiplication. They are linearly superimposed or added. The heat conduction gauge is preferably a Pirani gauge and the gas friction gauge is preferably a tuning fork quartz gauge.

Abstract translation: 描述了用于测量压力，优选为真空的方法。 来自热传导量规的测量信号和来自气体摩擦计的测量信号优选地通过乘法被处理成公共测量信号。 它们是线性叠加或添加的。 热传导计最好是Pirani计，气体摩擦计最好是音叉石英计。

公开(公告)号：US4995263A

公开(公告)日：1991-02-26

申请号：US450857

申请日：1989-12-14

Applicant: Rudolf Stocker

Inventor： Rudolf Stocker

IPC: G01L9/00 ,  G01L19/04 ,  G01L21/22

CPC classification number: G01L9/0022 ,  G01L19/04 ,  G01L21/22 ,  G01L9/085

Abstract: The tuning fork quartz manometer has a tuning fork quartz (2) mounted in a protective casing (3) which is in turn part of a self-oscillating feedback circuit. According to the invention the protective casing (3) is inserted by means of a sealing compound (4) or directly into a hosing (5) of a measuring head (1,6) or a mounting support (15a, 20') so that the mounting support can in turn be inserted in the measuring head (1,6) and, as desired, an ideal rigid or elastic suspension is provided. A measuring circuit (20) is located directly in the measuring head close to the tuning gork quartz (2) and is thermally coupled to the latter. The measuring circuit (20) preferably has a temperature correction network (R.sub.1, R.sub.2, 22) high frequency coupled from the feedback circuit containing the tuning fork quartz.

Abstract translation: 音叉石英压力计具有安装在保护壳体（3）中的音叉石英（2），该保护壳又是自振荡反馈电路的一部分。 根据本发明，保护壳体（3）通过密封化合物（4）或直接插入测量头（1,6）或安装支撑件（15a，20'）的软管（5）中，使得 安装支撑件又可插入到测量头（1,6）中，并且根据需要，提供理想的刚性或弹性悬挂。 测量电路（20）直接位于靠近调音石英（2）的测量头中，并与之耦合。 测量电路（20）优选地具有从包含音叉石英的反馈电路耦合的高频耦合的温度校正网络（R1，R2,22）。

公开(公告)号：US4189017A

公开(公告)日：1980-02-19

申请号：US937720

申请日：1978-08-29

Applicant: Felix Strobel ,  Rudolf Stocker ,  Werner Zumbrunn

Inventor： Felix Strobel ,  Rudolf Stocker ,  Werner Zumbrunn

IPC: G01D3/028 ,  G01G7/04 ,  G01G23/37 ,  G01G7/00

CPC classification number: G01G7/045

Abstract: An improved weighing apparatus of the electromagnetic load compensation type is disclosed, including a correction loop connected between the output terminal of the synchronizer and the input terminal of the pulse length modulator for varying the regulated load signal from the PID regulator to produce a corrected regulated load signal which compensates for digitalization errors produced by the synchronizer. In one embodiment, the correction loop includes an integrator circuit for superposing on the regulated load signal an inverted integrated error voltage the magnitude of which is a function of the operation of the synchronizer relative to the mark signals. In a second embodiment, the correction loop includes an integrator circuit that periodically applies to the regulated load signal a constant reference voltage of opposite polarity. Preferably, the reference voltage is applied simultaneously with the periods of supply of the compensation current.

Abstract translation: 公开了一种改进的电磁负载补偿型称重装置，其包括连接在同步器的输出端和脉冲长度调制器的输入端之间的校正环，用于改变来自PID调节器的调节负载信号以产生校正的调节负载 信号，补偿同步器产生的数字化误差。 在一个实施例中，校正回路包括积分器电路，用于在调节负载信号上叠加反相的积分误差电压，反相的积分误差电压的大小是同步器相对于标记信号的操作的函数。 在第二实施例中，校正回路包括积分器电路，周期性地向调节负载信号施加相反极性的恒定参考电压。 优选地，参考电压与补偿电流的供给周期同时施加。

公开(公告)号：US06619131B2

公开(公告)日：2003-09-16

申请号：US10099053

申请日：2002-03-14

Applicant: Urs Wälchli ,  Per Björkman ,  Rudolf Stocker ,  Marcel Gantner

Inventor： Urs Wälchli ,  Per Björkman ,  Rudolf Stocker ,  Marcel Gantner

IPC: G01L912

CPC classification number: G01L9/0075 ,  G01L21/12

Abstract: A pressure sensor has a baseplate and a support plate with a membrane. Layers on the membrane and the support plate are connected to a circuit for capacitively measuring pressure to generate a first pressure signal. A thermal conductivity measuring element that generates a second pressure signal has a heating element connected to the baseplate adjacent the support plate at a location opposite from the membrane for protecting the membrane from thermal effects. The method uses the sensor apparatus to generate an output signal representing a measured result when the measured result is above a transition value, on the basis of the first pressure signal and, when the pressure falls below a threshold value, any offset of the first pressure signal is compensated in such a way that determination of the output signal on the basis of the first pressure signal leads to the same result as determination of the output signal on the basis of the second pressure signal.

Abstract translation: 压力传感器具有底板和带有膜的支撑板。 膜和支撑板上的层连接到用于电容测量压力的电路以产生第一压力信号。 产生第二压力信号的热导率测量元件具有加热元件，该加热元件在与膜相对的位置处连接到邻近支撑板的基板，用于保护膜免受热效应。 该方法基于第一压力信号，使用传感器装置产生表示测量结果的测量结果高于转换值的输出信号，并且当压力低于阈值时，第一压力 信号被补偿，使得基于第一压力信号的输出信号的确定导致与基于第二压力信号的输出信号的确定相同的结果。

公开(公告)号：US3002843A

公开(公告)日：1961-10-03

申请号：US68734757

申请日：1957-10-01

Applicant: RUDOLF STOCKER

Inventor： RUDOLF STOCKER

IPC: C04B28/04

CPC classification number: C04B28/04 ,  Y02W30/94 ,  C04B14/32 ,  C04B18/141 ,  C04B20/0076 ,  C04B22/124

公开(公告)号：US4995265A

公开(公告)日：1991-02-26

申请号：US452112

申请日：1989-12-14

Applicant: Rudolf Stocker

Inventor： Rudolf Stocker

IPC: G01L9/00 ,  G01L19/04 ,  G01L21/22 ,  H03H3/04

CPC classification number: G01L9/0022 ,  G01L21/22 ,  G01L9/085

Abstract: In the present pressure measurement process the damping signal of a tuning fork quartz manometer, which is a measure of the prevailing pressure, is so combined with the correction value proportional to the resonant frequency that a measurement result is obtained, which is independent of any contamination of the tuning fork quartz. Apart from the resonant frequency (f.sub.R) of the measuring quartz (11), preferably also the resonant frequency (f.sub.R ') of a reference quartz (21) kept at constant pressure is determined. Thus, the damping signal (R.sub.S) can be corrected by a correction value proportional to the difference between the two reference frequencies (R.sub.R '-f.sub.R), which is substantially temperature-independent.

Abstract translation: 在目前的压力测量过程中，音叉石英压力计的阻尼信号是衡量当前压力的一个量度，与获得测量结果的谐振频率成正比的校正值组合在一起，这是与任何污染无关的 的音叉石英。 除了测量石英（11）的共振频率（fR）之外，还优选确定保持恒定压力的参考石英（21）的共振频率（fR'）。 因此，衰减信号（RS）可以通过与两个参考频率（RR'-fR）之间的差成比例的校正值来校正，这两个参考频率基本上是温度无关的。

公开(公告)号：US4212361A

公开(公告)日：1980-07-15

申请号：US14241

申请日：1979-02-22

Applicant: Rudolf Stocker

Inventor： Rudolf Stocker

IPC: G01G23/10 ,  G01G19/00 ,  G01G3/14

CPC classification number: G01G23/10

Abstract: Conventional electrical scales having independent weighing channels for a reference weight and the actual load with subsequent division of the resulting load signal by the reference signal to furnish the final output cannot furnish a final output signal independent of accelerating disturbances in a large critical frequency region, since changes in load change the dynamic behavior of the load channel. To substantially decrease variations in the final output signal due to such accelerating disturbances, the load signal is additionally coupled to the reference channel by means of at least one frequency-dependent network.

Abstract translation: 具有用于参考重量的独立称重通道的传统电子秤和实际负载，随后通过参考信号划分所得到的负载信号以提供最终输出，因此不能提供独立于大关键频率区域中的加速干扰的最终输出信号，因为 负载变化会改变负载通道的动态行为。 为了大大减少由于这种加速干扰引起的最终输出信号的变化，负载信号通过至少一个频率相关网络另外耦合到参考信道。

公开(公告)号：US5583297A

公开(公告)日：1996-12-10

申请号：US361303

申请日：1994-12-15

Applicant: Rudolf Stocker ,  Armin L. Stoeckli ,  Martin Boesch

Inventor： Rudolf Stocker ,  Armin L. Stoeckli ,  Martin Boesch

IPC: G01L19/06 ,  G01D3/024 ,  G01L21/12 ,  G01L21/34

CPC classification number: G01L21/34 ,  G01L21/12

Abstract: Particularly for the combination of cold-cathode ionization sensors and Pirani sensors, for obtaining a one-to-one measuring range which is significantly expanded compared to the measuring ranges of the respective sensor types, a weighting technique is provided in a transition range .DELTA.P of the respective sensor measuring ranges by which the characteristic sensor curves can constantly be guided into one another in a one-to-one manner.

Abstract translation: 特别是对于冷阴极电离传感器和Pirani传感器的组合，为了获得与各传感器类型的测量范围相比显着扩大的一对一测量范围，在过渡范围DELTA P中提供加权技术 特征传感器曲线可以不断地以一对一的方式相互导向的各个传感器测量范围。

公开(公告)号：US5475623A

公开(公告)日：1995-12-12

申请号：US386597

申请日：1995-02-10

Applicant: Rudolf Stocker

Inventor： Rudolf Stocker

IPC: G01D3/02 ,  G01D3/036 ,  G01L21/12 ,  G01G23/48

CPC classification number: G01D3/036 ,  G01L21/12

Abstract: A method and apparatus for convening a measured signal which, at least in a first approximation, is related to a quantity of interest by the equation (a): ##EQU1## where y is the quantity of interest, x is the measured signal, and k, k.sub.N, k.sub.Z are constants, into a signal that is a function of the quantity of interest. The method implements the function (b):ln y=prop. ([ln (x-k.sub.N)-ln (k.sub.Z -x)])wherein prop. means proportional, and where the function is implemented in an approximated manner by at least two bipolar transistors that have base emitter voltages that are dependent on collector currents of the bipolar transistors for receiving an output signal according to the equation (c): y'=ln y, with y' being the output signal.

Abstract translation: 一种用于召集测量信号的方法和装置，所述测量信号至少在第一近似中与等式（a）的感兴趣量相关：其中y是感兴趣量，x是测量信号，以及 k，kN，kZ是作为感兴趣量的函数的信号的常数。 该方法实现函数（b）：ln y = prop。 （[ln（x-kN）-ln（kZ-x）]） 并且其中功能以近似方式由至少两个双极晶体管实现，所述至少两个双极晶体管具有取决于双极晶体管的集电极电流的基极发射极电压，用于根据等式（c）接收输出信号：y'= 以y为输出信号。